This fork of a world map shows country boundaries from the World Atlas TopoJSON dataset, with each country rendered as a light green SVG path that turns red on hover and displays its name in a tooltip. The visualization uses d3.geoNaturalEarth1 for projection, d3.geoPath to generate the geographic paths, and d3.zoom to enable panning and zooming on the map. Country outlines are stroked in black with low opacity, and the sphere background is filled with a blue color.